too confident or sure of one's ability etc

self-assured

having or showing a high opinion of oneself

arrogant

showing too much pride in oneself, especially that one is superior to others

bossy, overbearing

forcing others to do what one wants

arrogant, domineering

(of behaviour etc) too self-confident or arrogant

self-confident

without use, value, meaning or result; having too high an opinion of one's looks, abilities etc

egotistical